Surgical Manipulator based on Parallel Mechanism

Abstract We presents a 5-DOF manipulator which consists of three parts, 1-DOF translational joint, a bendable skeleton (2-DOF for Omni-directional bending motion), and a rotatable forceps gripper (1-DOF for rotation, 1-DOF for opening/closing). The bendable segment in the manipulator achieves two orthogonal bending DOFs by pulling or pushing three parallel universal-joint-based shaft chains. Forward and inverse kinematics of the bendable … Continue reading

3D Ultrasound Tracking and Servoing of Tubular Surgical Robots

Collaborators: [Pediatric Cardiac Bioengineering Lab of Children’s Hospital Boston, Harvard Medical School, USA] [Philips Research] Abstract Ultrasound imaging is a useful modality for guiding minimally invasive interventions due to its portability and safety. In cardiac surgery, for example, real-time 3D ultrasound imaging is being investigated for guiding repairs of complex defects inside the beating heart. Substantial difficulty can arise, however, … Continue reading